Question 100398
{{{(7/2)a=35}}} Start with the given equation



{{{(2)((7/2)a)=(2)(35)}}} Multiply both sides by 2. 



{{{7a=70}}} Multiply



{{{a=(70)/(7)}}} Now divide both sides by  7 to isolate and solve for a



{{{a= 10}}} Reduce



So the answer is {{{a= 10}}}


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{{{x-(9/10)x=7}}} Start with the given equation



{{{(10)(x-(9/10)x)=(10)(7)}}} Multiply both sides by the LCM of 10. This will eliminate the fractions  (note: if you need help with finding the LCM, check out this <a href=http://www.algebra.com/algebra/homework/divisibility/least-common-multiple.solver>solver</a>)




{{{10x-9x=70}}} Distribute and multiply 10 by each term on both sides




{{{x=70}}} Combine like terms on the left side


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Answer:

So our answer is {{{x=70}}}